Standard: CNS 4414 - 1981
Available sizes: M1 to M3 (7 sizes)
| Size | P | r | k_max | k_min | s_max | s_min | ds_max | ds_min | k_nominal | ds_nominal |
|---|---|---|---|---|---|---|---|---|---|---|
| M1 | / | 0.5 | 0.72 | 0.3 | 2.3 | 2.16 | 0.12 | 0.6 | 0.3 | 2.5 |
| M1.2 | 15 | 0.65 | 0.96 | 0.4 | 3 | 2.86 | 0.16 | 0.8 | 0.4 |
| 3 |
| M1.4 | 18 | 1 | 1.5 | 0.6 | 4.7 | 4.4 | 0.25 | 1.2 | 0.6 | 5 |
| M1.6 | 20 | 1.4 | 1.93 | 0.8 | 6.5 | 6.14 | 0.35 | 1.7 | 0.9 | 7 |
| M2 | 25 | 2 | 2.5 | 1.2 | 9.2 | 8.84 | 0.5 | 2.3 | 1.25 | 10 |
| M2.5 | 34 | 3.2 | 4 | 2 | 14.5 | 14.07 | 0.8 | 3.7 | 2 | 16 |
| M3 | 40 | 4 | 5 | 2.5 | 18 | 17.57 | 1 | 4.6 | 2.5 | 20 |
Standard corrosion protection for indoor and mild outdoor environments.
Salt spray: 96–200 hours | RoHS compliant (trivalent chromium)
High-performance coating for automotive, marine, and harsh environments.
Salt spray: 720–1500 hours | Recommended for grade 8.8+
Heavy-duty protection for structural and outdoor applications.
Salt spray: 500–1000 hours | Thread tolerance adjustment required
Note for high-strength fasteners (Grade 10.9, 12.9): Electroplating processes require hydrogen embrittlement relief baking (minimum 4 hours at 200°C within 4 hours of plating). Contact our engineering team for grade-specific plating recommendations.
Request detailed technical specifications, material certifications, and availability information for your application requirements. Our engineering team can provide product recommendations, custom specifications, and technical documentation.
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